<template>
	<section>
		<!--工具条-->
		<el-col :span="24" class="toolbar" style="padding-bottom: 0px;">
			<el-form :inline="true" :model="filters">
				<el-form-item>
					<el-input v-model="filters.keyword" placeholder="关键字"></el-input>
				</el-form-item>
				<el-form-item>
					<el-button type="primary" v-on:click="getDepartments">查询</el-button>
				</el-form-item>
				<el-form-item>
					<el-button type="primary" @click="handleAdd">新增</el-button>
				</el-form-item>
			</el-form>
		</el-col>

		<!--列表-->
		<el-table :data="departments" highlight-current-row v-loading="listLoading" @selection-change="selsChange" style="width: 100%;">
			<el-table-column type="selection" width="55">
			</el-table-column>
			<el-table-column type="index" width="60">
			</el-table-column>
			<el-table-column prop="sn" label="部门编码" width="120" sortable>
			</el-table-column>
			<el-table-column prop="name" label="名称" width="180" sortable>
			</el-table-column>
			<el-table-column prop="state" label="状态" width="100" sortable>
				<template scope="scope">
					<span style="color: #5daf34" v-if="scope.row.state === 0">启用</span> <!-- 这里用三个等号就是恒等于 -->
					<span style="color:red" v-else-if="scope.row.state === -1">禁用</span>
					<span style="color:dimgrey" v-else>未知</span>
				</template>
			</el-table-column>
			<el-table-column prop="manager.username" label="管理员" width="180" sortable>
			</el-table-column>
			<el-table-column prop="parent.name" label="上级部门" width="180" sortable>
			</el-table-column>
			<el-table-column label="操作" >
				<template scope="scope">
					<el-button size="small" @click="handleEdit(scope.$index, scope.row)">编辑</el-button>
					<el-button type="danger" size="small" @click="handleDel(scope.$index, scope.row)">删除</el-button>
				</template>
			</el-table-column>
		</el-table>

		<!--工具条-->
		<el-col :span="24" class="toolbar">
			<el-button type="danger" @click="batchRemove" :disabled="this.sels.length===0">批量删除</el-button>
			<el-pagination layout="prev, pager, next"
						   @current-change="handleCurrentChange"
						   :page-size="pageSize"
						   :total="total"
						   style="float:right;">
			</el-pagination>
		</el-col>

		<!-- 新增或编辑界面
		    :visible.sync 控制当前窗体是否显示
		  	:rules  表单校验引用规则
		  	ref=  给当前表单取一个引用别名
		-->
        <!-- :title，前面加一个":"，绑定title的值 -->
		<el-dialog :title="title" :visible.sync="departmentFormVisible" :close-on-click-modal="false">
			<el-form :model="departmentForm" label-width="80px" :rules="departmentFormRules" ref="departmentForm">
				<el-form-item label="名称" prop="name">
					<el-input v-model="departmentForm.name" auto-complete="off"></el-input>
				</el-form-item>
				<el-form-item label="编号" prop="sn">
					<el-input v-model="departmentForm.sn" auto-complete="off"></el-input>
				</el-form-item>
				<el-form-item label="状态">
					<el-radio-group v-model="departmentForm.state">
						<el-radio class="radio" :label="0">启用</el-radio>
						<el-radio class="radio" :label="-1">禁用</el-radio>
					</el-radio-group>
				</el-form-item>
				<el-form-item label="管理员">
					<!-- clearable是elementUI选择框的右边的小叉叉，可以清除选择内容 -->
					<el-select v-model="departmentForm.manager" clearable value-key="id" placeholder="请选择">
					   <!--:label 选择后展示在选择框中的内容-->
					   <!--:value 选择后你要传送给后端的值-->
						<el-option v-for="item in employees"
								:key="item.id"
								:label="item.username"
								:value="item">
							<span style="float: left">{{ item.username }}</span>
							<span style="float: right; color: #8492a6; font-size: 13px">{{ item.phone }}</span>
						</el-option>
					</el-select>
				</el-form-item>
				<el-form-item label="上级部门">
					<el-cascader v-model="departmentForm.parent" :options="deptTree" :props="{
					   checkStrictly: true,
					   label: 'name',
					   value: 'id'
					}" clearable></el-cascader>
				</el-form-item>
			</el-form>
			<div slot="footer" class="dialog-footer">
				<el-button @click.native="departmentFormVisible = false">取消</el-button>
				<el-button type="primary" @click.native="departmentSubmit" :loading="departmentLoading">提交</el-button>
			</div>
		</el-dialog>

	</section>
</template>

<script>

    export default {
        data() {
            return {
                title:"",
                filters: {
                    keyword: ''		/* 用于高级查询的关键字 */
                },
                departments: [],
				employees: [],
				deptTree: [],
                total: 0,
                pageSize:5,
                page: 1,
                listLoading: false,
                sels: [],//列表选中行

                departmentFormVisible: false,//编辑界面是否显示
                departmentLoading: false,
                departmentFormRules: {// 部门表单属性的校验规则
                    name: [
                        { required: true, message: '请输入部门名称', trigger: 'blur' }	/* blur模糊 */
                    ],
					sn: [
						{ required: true, message: '请输入部门编号', trigger: 'blur' }
                	]
           	 	},
                //编辑界面数据
                departmentForm: {
                    id: null,
                    name: '',
                    sn: '',
                    state: 0,
                    manager: null,
                    parent: null,
                },
            }
        },
        methods: {
            /*//性别显示转换
            formatSex: function (row, column) {
                return row.state == 0 ? '<span style="color:green;>"启用</span>' : row.state == -1 ? '禁用' : '未知';
            },*/
            handleCurrentChange(val) {	/* 处理当前页 */
                this.page = val;
                this.getDepartments();	/* 重新获取部门 */
            },
            //获取部门列表
            getDepartments() {
                let para = {
                    currentPage: this.page,
                    keyword: this.filters.keyword,
                    pageSize:this.pageSize
                };
                this.listLoading = true;//开启忙等框
                this.$http.post("/dept",para)
                    .then(result=>{
                        result = result.data;//PageList{total rows}
                        this.departments = result.rows;
                        this.listLoading = false;//关闭忙等框
                        this.total = result.total;

                    })
                    .catch(result=>{
                        console.log(result);
                        alert("系统错误！");
                    })
                /*getDepartmentListPage(para).then((res) => {
                    this.total = res.data.total;
                    this.departments = res.data.departments;
                    this.listLoading = false;
                    //NProgress.done();
                });*/
            },
            //删除
            handleDel: function (index, row) {
                this.$confirm('确认删除该记录吗?', '温馨提示', {
                    type: 'warning'
                }).then(() => {//点击确定
                    this.listLoading = true;//开启忙等框
                    //NProgress.start();
                    this.$http.delete("/dept/"+row.id)	/* 拼接，根据id删除 */
                        .then(result=>{
                            // 不管是否成功都要先关闭忙等框
                            this.listLoading = false;
                            //判断业务操作是否正常
                            result  = result.data;//AjaxResult  {success:false,message:操作失败}
                            if(result.success){
                                this.$message({
                                    message: '删除成功',
                                    type: 'success'
                                });
                            }else{
                                this.$message({
                                    message: result.message,//提示我们自己的业务错，有可能已经删除了
                                    type: 'error'
                                });
                            }
                            //2.刷新页面
                            //是否需要重新刷新页面   要  定位到第一页
                            this.page = 1;
                            this.getDepartments();
                        })
                        .catch(result=>{
                            this.listLoading = false;
                            //NProgress.done();
                            this.$message({
                                message: '删除失败',
                                type: 'error'
                            });
                            //失败了是否需要重新刷新页面   要  定位到第一页
                            this.page = 1;
                            this.getDepartments();
                        })
                }).catch(() => {//点击取消

                });
            },
            // 显示编辑界面
            handleEdit: function (index, row) {
                this.getDeptTree();	// 部门树
                this.title = "编辑";
                this.departmentFormVisible = true;
                //Object.assign 克隆
                this.departmentForm = Object.assign({}, row);//回显
                let dirPath = row.dirPath; // 用dirpath做上级部门的回显
                if(dirPath){	// 当dirPath不为空即true时，即不是顶级部门，有上级部门
                    let array = dirPath.split("/");// dirPath按/分割
                    let parent = [];
                    for(let i = 1; i < array.length-1; i++){// 例如[1,2,3],2就是上级部门
                        parent.push(parseInt(array[i]));
                    }
                    console.debug(parent);
                    this.departmentForm.parent = parent;
                }
            },
            // 显示新增界面
            handleAdd: function () {
                this.getDeptTree();
                this.title = "新增";// 给新增界面添加标题区分编辑页面
                this.departmentFormVisible = true;// 显示新增框，true
                this.departmentForm = {//清空历史遗留数据
                    id: null,
					name: '',
                    sn: '',
                    state: 0,
                    manager: null,
                    parent: null,
                };
            },
            // 提交保存表单的方法
            departmentSubmit: function () {
                // 表单校验是不是符合要求
                this.$refs.departmentForm.validate((valid) => {
                    if (valid) {// 符合
                        this.$confirm('确认保存吗？', '提示', {}).then(() => {
                            this.departmentLoading = true;// 打开按钮的忙等框
                            //NProgress.start();
                            let para = Object.assign({}, this.departmentForm);

                            // 变成后端支持的数据
                            if(para.parent){// 给父节点传参
                                let parent = para.parent;
                                let pid = parent[parent.length-1];// 取数组最后一个
                                // 刷新加载parent
                                para.parent = {"id":pid};
                            }
                            this.$http.put("/dept",para).then((result) => {
                                result = result.data;
                                this.departmentLoading = false;// 无论如何先关闭忙等框
                                this.departmentFormVisible = false;// 关闭弹出框
                                //NProgress.done();
                                if(result.success){// 如果成功
                                    this.$message({
                                        message: '操作成功',
                                        type: 'success'
                                    });
                                } else {
                                    this.$message({
                                        message: result.message,// 可能是成功了，但是其他代码哪里写错了
                                        type: 'error'
                                    });
                                }
                                // 刷新并且重新定位到第一页
                                this.page = 1;
                                this.getDepartments();

                            })
                                .catch(result=>{
                                    this.departmentLoading = false;// 先关闭忙等框
                                    this.$message({
                                        message: '操作失败',
                                        type: 'error'
                                    });
                                })

                            /*departmentDepartment(para).then((res) => {
                                this.departmentLoading = false;
                                //NProgress.done();
                                this.$message({
                                    message: '提交成功',
                                    type: 'success'
                                });
                                this.$refs['departmentForm'].resetFields();
                                this.departmentFormVisible = false;
                                this.getDepartments();
                            });*/
                        });
                    }
                });
            },
            selsChange: function (sels) {//当前已经选中的所有行的数据
                this.sels = sels;
            },
            // 批量删除
            batchRemove: function () {
                var ids = this.sels.map(item => item.id);
                this.$confirm('确认删除选中记录吗？', '提示', {
                    type: 'warning',
                }).then(() => {
                    this.listLoading = true;
                    //NProgress.start();
                    this.$http.patch("/dept",ids)
                        .then(result=>{
                            this.listLoading = false;	// 关闭忙等矿
                            result  = result.data;
                            if(result.success){
                                this.$message({
                                    message: '删除成功',
                                    type: 'success'
                                });
                            }else{
                                this.$message({
                                    message: result.message,// 可能是成功了，但是其他业务代码哪里写错了
                                    type: 'error'
                                });
                            }
                            // 刷新并重新定位到第一页
                            this.page = 1;
                            this.getDepartments();
                        })
                        .catch(result=>{
                            this.listLoading = false;
                            //NProgress.done();
                            this.$message({
                                message: '删除失败',
                                type: 'error'
                            });
                            // 刷新并重新定位到第一页
                            this.page = 1;
                            this.getDepartments();
                        })

                    /*batchRemoveDepartment(para).then((res) => {
                        this.listLoading = false;
                        //NProgress.done();
                        this.$message({
                            message: '删除成功',
                            type: 'success'
                        });
                        this.getDepartments();
                    });*/
                }).catch(() => {

                });
            },
            getEmployees(){	// 获取员工表
                this.$http.get("/emp")
                    .then(result=>{
                        result = result.data;// 返回值是集合
                        this.employees  = result;// 赋值给employees
                    })
            },
            getDeptTree(){// 获取部门层级树
                this.$http.get("/dept/tree").then(result=>{
                        result = result.data;
                        this.deptTree  = result;
                    })
            }
        },
        mounted() {	// 钩子函数，页面加载完毕除触发
            this.getDepartments();
            this.getEmployees();
        }
    }

</script>

<style scoped>


</style>